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Dynamically altering time to live values in a data cache

  • US 8,918,602 B2
  • Filed: 09/19/2011
  • Issued: 12/23/2014
  • Est. Priority Date: 09/19/2011
  • Status: Active Grant
First Claim
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1. A method for dynamically adjusting a TTL value for a data object stored in-memory in a data grid, comprising:

  • setting a stale data tolerance policy;

    calculating metrics with a processor to report a cost to re-create and re-store the data object;

    adjusting the TTL value based on said metrics, said adjusting the TTL value further comprising using administrative input and including a stale data policy;

    provisioning additional in-memory storage in order to handle potential data expansion resulting from storing the data for longer periods of time before eviction when a cost of recreation, thereof, is above a policy value; and

    provisioning less in-memory storage in order to benefit from potential data contraction resulting from storing the data for shorter periods of time before eviction when a cost of recreation, thereof, is below a policy value.

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